Results 91 to 100 of about 46,918 (252)

Dynamics Research of Double Cross Universal Joints based on Rigid-flexible Coupling

open access: yesJixie chuandong, 2016
Based on the rigid-flexible coupled multi-body dynamics theory,with software of three-dimensional solid design,on the basis of finite element software and multi-body dynamics software,the coupled dynamics simulation model of double cross universal joints
Li Junhu   +3 more
doaj  

Dynamic modeling and analysis of the nut-direct drive system

open access: yesAdvances in Mechanical Engineering, 2018
For ball screw feed system, it has been a common practice that screw shaft is typically supported by bearings at both ends and is driven by a servo motor through coupling.
Zhaoguo Wang   +3 more
doaj   +1 more source

A Numerical Simulation for the Sliding Surface Temperature of Polyoxymethylene

open access: yesTribology Online, 2010
An unsteady numerical simulation was carried out to evaluate the sliding surface temperature of polyoxymethylene (POM) for wear test. The numerical model consists of two-dimensional hollow circular cylindrical POM, metallic shaft, and ambient air.
Youhei Takagi   +6 more
doaj   +1 more source

Clamping assembly for inertial components Patent [PDF]

open access: yes, 1968
Inertial component clamping assembly design for spacecraft guidance and control system ...
Denaci, D. E.   +2 more
core   +1 more source

‘This Is Not Europe’: Investigating the Commission's Anti‐Populist Articulation of ‘European Values’

open access: yesJCMS: Journal of Common Market Studies, EarlyView.
Abstract Whilst ‘populism’ is often considered antithetical to ‘European values’, how this contrast shapes the very meaning of such ‘values’ remains underexplored. This article investigates the European Commission's anti‐populist articulation of ‘European values’, which constructs ‘populism’ as their constitutive outside.
Alex Yates
wiley   +1 more source

Studies of the quality and cost-effectiveness of a novel conceptof open-die forged powerplant main shaft

open access: yesMetalurgija, 2015
An innovatory concept of open-die forging of windmill main shaft is described. Comparative study of the new technology based on the concept of cogging hollow shaft on mandrel featuring material savings and higher quality of a finished part versus ...
P. Skubisz, Ł. Lisiecki, J. Sińczak
doaj  

Dart formation in nematocysts of the sea anemone Metridium senile (Linnaeus, 1761) (Cnidaria: Anthozoa)

open access: yesScientia Marina, 2010
In examining large acontia b-mastigophore and p-amastigophore nematocysts of the sea anemone Metridium senile (Linnaeus, 1761) darts were observed by interference-contrast light microscopy (LM) and scanning electron microscopy (SEM). The darts consist of
Carina Östman   +2 more
doaj   +1 more source

Osteology and arthrology of the ankle and tarsometatarsus of anoles (Iguania: Anolidae): not convergent with geckos but divergent from the ancestral iguanian condition

open access: yesJournal of Anatomy, EarlyView.
Geckos and anoline iguanid lizards are well‐known for their possession of adhesive toepads, which are generally regarded as being convergent structures. We show that the anatomical configuration of the foot in these two lineages differs markedly and that these differences likely relate to the contrasing ways they deploy their adhesive systems and ...
Anthony P. Russell   +2 more
wiley   +1 more source

Automatic instrument for chemical processing to detect microorganism in biological samples by measuring light reactions [PDF]

open access: yes, 1973
An automated apparatus is reported for sequentially assaying urine samples for the presence of bacterial adenosine triphosphate (ATP) that comprises a rotary table which carries a plurality of sample containing vials and automatically dispenses fluid ...
Chappelle, E. W.   +3 more
core   +1 more source

Morphology and osteo‐histology of the weigeltisaurid wing: Implications for aerial locomotion in the world's first gliding reptiles

open access: yesJournal of Anatomy, EarlyView.
This study investigates the morphology and osteo‐histology of the wing skeleton of the world's first gliding reptiles, showing how it differs from those of extant gliding lizards, yet is also convergently similar. These findings pave the way for future biomechanical studies on the gliding locomotion of these emblematic fossil animals. Abstract The Late
Valentin Buffa   +7 more
wiley   +1 more source

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